Case No. 01311 FECR165589 (Dubuque County)

Arrest Case #: 2026006047

DUBUQUE, Iowa — A 31-year-old Dubuque man was arrested Monday evening on felony and misdemeanor charges stemming from an alleged threat of terrorism and first-degree harassment.

Mason Ozzie Simon-Ressler, was taken into custody at 8:55 p.m. on Sept. 7, 2026, at 2070 Jackson St. in Dubuque by Officer E.E. Hingtgen of the Dubuque Police Department. He faces one count of Threat of Terrorism, a felony, and one count of Harassment in the First Degree, a serious misdemeanor.

According to court records filed in Dubuque County, the State of Iowa has formally charged Simon-Ressler in case 01311 FECR165589. A criminal complaint was submitted by the Dubuque Police Department on Sept. 7, 2026.

On Sept. 8, 2026, subsequent filings were entered in the case, including:

•  An appearance filed by attorney Steven Ray Wilson Jr.

•  A no-contact order issued by Judge Robert J. Richter (with comments noting CC PRTP).

•  A return of service on the no-contact order by the Dubuque County Sheriff’s Department.

•  A hearing for initial appearance scheduled by Judge Richter, with a preliminary hearing set for Sept. 16, 2026, at 10:50 a.m. in Room 3106. Bond was set at $5,000 cash appearance bond has not been posted.

The case remains active in Dubuque County District Court. No further details regarding the specific allegations underlying the charges have been released in the publicly available docket entries.

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